TY - BOOK AU - Agor, R. TI - Advanced surveying: a text book for engineering students,practising engineers and surveyors SN - 9788174090539 U1 - 526.9 PY - 1999/// CY - Delhi PB - Khanna Pub. KW - Surveying KW - Surveys - Turnel KW - Survey Instruments KW - Surveying - Hydrographic KW - Survey - Photogrammetric ER -